Dr. Mark Johnson, MD
What this data tells you about Dr. Johnson
Dr. Mark Johnson is an ophthalmology in Venice, FL, with 20 years in practice. Based on federal Medicare data, Dr. Johnson performed 5,767 Medicare services across 4,995 unique beneficiaries.
Between the years covered by Open Payments, Dr. Johnson received a total of $637 from 11 pharmaceutical and/or device companies across 18 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in ophthalmology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Johnson is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (30-39 min) | 1,157 | $85 | $131 |
| Retinal photography (fundus photo) | 960 | $25 | $82 |
| Office visit, established patient (20-29 min) | 896 | $64 | $95 |
| Retinal imaging (OCT scan) | 532 | $27 | $52 |
| Visual field test, extended | 395 | $45 | $90 |
| Optic nerve imaging (OCT scan) | 317 | $27 | $49 |
| Exam of the internal drainage system of eye | 264 | $19 | $29 |
| Ultrasound scan of cornea to determine thickness | 262 | $8 | $16 |
| Corneal topography and eye depth measurement | 247 | $29 | $97 |
| New patient office visit (45-59 min) | 222 | $104 | $170 |
| Cataract surgery with lens implant | 212 | $420 | $943 |
| Removal of recurring cataract in lens capsule using a laser | 155 | $233 | $350 |
| Photography of content of eyes | 29 | $13 | $40 |
| Complex removal of cataract with insertion of prosthetic lens | 26 | $572 | $1,084 |
| Removal of eyelashes using forceps | 20 | $14 | $61 |
| Dilation of tear drainage opening | 20 | $55 | $145 |
| Extended exam of the back part of the eye with retinal drawing | 20 | $15 | $32 |
| Exam of visual field with intermediate testing | 18 | $33 | $69 |
| Incision and drainage of abscess of eyelid | 15 | $215 | $290 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
4.1 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Johnson is a clinical cardiology specialist, with above-average Medicare volume (top 21% in FL), and low-engagement industry engagement, with 20 years of practice experience.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Johnson experienced with office visit, established patient (30-39 min)?
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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